iPhone unit test linking problem, can't find DevToolsBundleInjection.framework

Question

I'm trying to setup application unit tests for my iphone app. So I made a copy of the app target, and a unit test bundle target as described in apple's documentation (http://developer.apple.com/iphone/library/documentation/Xcode/Conceptual/iphone_development/135-Unit_Testing_Applications/unit_testing_applications.html)

After following Apple's directions, I wasn't able to reference my classes in the unit tests, so I linked the app into the unit test bundle using the "Bundle Loader" build setting and setting the main target to export symbols. That resolved the compilation time errors, and it worked and executed my tests immediately after I changed it. But once I cleaned and built again, I started getting this error when I tried to run on the device:

Unable to read symbols for "/Developer/Platforms/iPhoneOS.platform/DeviceSupport/3.1 (7C144)/Symbols/Developer/Library/PrivateFrameworks/DevToolsBundleInjection.framework/DevToolsBundleInjection" (file not found).

It's true that the file doesn't exist. I found the .framework file under: /Xcode3.1.4/Library/PrivateFrameworks PrivateFrameworks

and made a symbolic link. Then running the app said that it couldn't link the app's files:

010-01-25 20:19:22.330 SmokeyTheBear[5808:207] Error loading /private/var/mobile/Applications/26E1F8F4-6444-415B-84CB-BB161DBA29E9/SmokeyTheBear.app/LogicTests.octest/LogicTests:  dlopen(/private/var/mobile/Applications/26E1F8F4-6444-415B-84CB-BB161DBA29E9/SmokeyTheBear.app/LogicTests.octest/LogicTests, 262): Symbol not found: _OBJC_CLASS_$_AppDelegate
  Referenced from: /private/var/mobile/Applications/26E1F8F4-6444-415B-84CB-BB161DBA29E9/SmokeyTheBear.app/LogicTests.octest/LogicTests
  Expected in: /var/mobile/Applications/26E1F8F4-6444-415B-84CB-BB161DBA29E9/SmokeyTheBear.app/UDorse
 in /private/var/mobile/Applications/26E1F8F4-6444-415B-84CB-BB161DBA29E9/SmokeyTheBear.app/LogicTests.octest/LogicTests
DevToolsBundleInjection: Error loading bundle '/private/var/mobile/Applications/26E1F8F4-6444-415B-84CB-BB161DBA29E9/SmokeyTheBear.app/LogicTests.octest'

Then, I switched back to running the normal target for the app, and it ran all my unit tests and exited! I cleaned again and built, and then the normal target ran normally. The unit test target still didn't work.

Answer 1

How are you linking the framework in the first place? You shouldn't have to create a symlink in order to make it work. Switch to your test bundle target and open Project->Edit Active Target. Make sure the library is in the 'Linked Libraries' section of the general tab. If it is, remove/re-add it. This has fixed similar issues with library linking for me.

Answer 2

Hey smokey_the_bear, have you checked what I went through with this question:

http://stackoverflow.com/questions/1713280/linker-error-iphone-unit-test-bundle-referencing-app-classes

Ihad to specify the bundle loader to get things linking properly.

Answer 3

Have you tried the power of prayer?